[tram], (Noun)

Definitions:
- a passenger vehicle powered by electricity conveyed by overhead cables, and running on rails laid in a public road

- a low four-wheeled cart or barrow used in coal mines


Phrases:
- be on the wrong tram

Origin:
early 16th century (denoting a shaft of a barrow; also in tram): from Middle Low German and Middle Dutch trame ‘beam, barrow shaft’. In the early 19th century the word denoted the parallel wheel tracks used in a mine, on which the public tramway was modelled; hence tram (late 19th century)